import pandas as pd

df1 = pd.read_csv('../static/data/info_1.csv')
df2 = pd.read_csv('../static/data/info_2.csv')
df3 = pd.read_csv('../static/data/info_3.csv')
df4 = pd.read_csv('../static/data/info_4.csv')

df = pd.concat([df1, df2, df3, df4], axis=0)
df.to_csv('../static/data/info.csv', index=False)